The OnCell G3100 industrial RS-232 or RS-232/422/485 GSM/GPRS/EDGE IP modems are designed to transmit data and short messages (SMS) over GSM/GPRS/EDGE cellular networks. The Real COM operation mode automatically generates a virtual COM port to match serial ports supported by the OnCell G3100, allowing you to communicate with remote serial devices. The OnCell G3100’s CPU comes pre-installed with the TCP/IP protocol suite to transmit data back and forth between the serial device and cellular TCP/IP network. It also comes with a built-in relay output that can be configured to indicate the priority of events when notifying or warning engineers in the field, and the two digital inputs allow you to connect basic I/O devices, such as sensors, to the cellular network. The G3100 can be mounted on a DIN-rail, and the 12 to 48 VDC power input has 2 KV EFT/Surge protection to allow the use of different types of field power source. The serial ports are also protected by 15 KV ESD line protection to keep your system safe from unexpected electrical discharges.